Add a filter to enable twemoji all the time

[iseulde]

Regardless of browser support.

[peterwilsoncc]

Such a filter could be used for disabling too, and return force_enable, disable (with the alias force_disable) or, the default, detect.

[iseulde]

Sure. The reason I want this is because I want my content to be the same regardless of the browser. Also then you don't need this chunk of inline JS in the head. But an easy way to disable would also be good! Not sure if there is right now.

[voldemortensen]

The simplest way I know of to disable currently is with this.

/**
 * Disable the emoji's
 */
function disable_emojis() {
        remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
        remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
        remove_action( 'wp_print_styles', 'print_emoji_styles' );
        remove_action( 'admin_print_styles', 'print_emoji_styles' );    
        remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
        remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );      
        remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
        add_filter( 'tiny_mce_plugins', 'disable_emojis_tinymce' );
}
add_action( 'init', 'disable_emojis' );

/**
 * Filter function used to remove the tinymce emoji plugin.
 * 
 * @param    array  $plugins  
 * @return   array             Difference betwen the two arrays
 */
function disable_emojis_tinymce( $plugins ) {
        if ( is_array( $plugins ) ) {
                return array_diff( $plugins, array( 'wpemoji' ) );
        } else {
                return array();
        }
}

Taken from the ​disable-emojis plugin on the repo.

[pento]

This can be done fairly easily without needing a special filter for it: remove the print_emoji_detection_script action, then load the wp-includes/js/wp-emoji-release.min.js file.

I'm going to close this ticket as maybelater: if there are additional difficulties which require a core solution, we can reopen it.

[westonruter]

I wonder should we now not disable emoji detection by default (along with the s.w.org dns-prefetch)? It seems all platforms now support emoji natively: ​https://caniemoji.com/

By disabling by default, this would eliminate emoji-loader.js from blocking the thread as it is currently causing a ~90ms long task (ref 37788#comment:4).

[seedsca]

It seems all platforms now support emoji natively

I only see four platforms included on that link. Is Linux also not affected?considered?

[pento]

Replying to westonruter:

I wonder should we now not disable emoji detection by default (along with the s.w.org dns-prefetch)? It seems all platforms now support emoji natively: ​https://caniemoji.com/

That site doesn't tell the full story: the issue isn't about whether platforms support emoji natively, it's about what emoji version they support. As Twemoji usually add support for new emoji earlier than other platforms, we're frequently able to roll out rendering support for new emoji versions to display on devices that don't yet support that version.

So, I doubt it will ever be possible to disable emoji detection by default. Personally, I'd love to see this detection done by the UA, it'd be much better for everyone if we could just check window.navigator.emojiVersion instead of doing our own rendering test.

[westonruter]

Replying to westonruter:

By disabling by default, this would eliminate emoji-loader.js from blocking the thread as it is currently causing a ~90ms long task (ref 37788#comment:4).

I've opened #58472 to specifically address the long task.